1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
| import * as turf from "@turf/turf";
| const mapRoam = {
| coord:[
| [
| 123.13255714786649,
| 23.067683098974722
| ],
| [
| 122.93636587570226,
| 23.188425587402776
| ],
| [
| 122.73982043428656,
| 23.308924483009175
| ],
| [
| 122.54291884301844,
| 23.429177925979
| ],
| [
| 122.34565912727214,
| 23.549184049216148
| ],
| [
| 122.14803931858805,
| 23.668940978328354
| ],
| [
| 121.95005745486677,
| 23.78844683161317
| ],
| [
| 121.7517115805666,
| 23.90769972004486
| ],
| [
| 121.61410438678931,
| 23.99015603989342
| ]
| ],
| entityModel:null,
| url:'http://localhost/Model/model/Cesium_Air.glb',
| // 两点插值去重
| getTurfLineChunk(){
| var line = turf.lineString([[123.13255714786649,23.067683098974722], [121.61410438678931,23.99015603989342]]);
|
| var chunk = turf.lineChunk(line, 15, {units: 'miles'});
| const val = turf.cleanCoords(line).geometry.coordinates;
| const std = [];
| chunk.features.filter(item=>{
| for(var i in item.geometry.coordinates){
| std.push(item.geometry.coordinates[i])
| }
| })
| var line = turf.lineString(std);
|
|
| },
| startRoam(){
|
| this.trackView();
| },
| closeRoam(){
| if(this.entityModel == null)return
| Viewer.clock.shouldAnimate = false;
| Viewer.entities.removeAll()
| this.entityModel = null;
| },
| trackView(){
| const myPositions= this.coord;
| Viewer.clock.shouldAnimate = true
| var start = Cesium.JulianDate.fromDate(new Date(2015, 2, 25, 16));
| var stop = Cesium.JulianDate.addSeconds(
| start,
| this.coord.length - 1,
| new Cesium.JulianDate()
| );
| Viewer.clock.startTime = start.clone();
| Viewer.clock.stopTime = stop.clone();
| Viewer.clock.currentTime = start.clone();
| Viewer.clock.clockRange = Cesium.ClockRange.LOOP_STOP;
| Viewer.clock.multiplier = 1;
| var position = computeCirclularFlight();
|
| this.entityModel = Viewer.entities.add({
| availability: new Cesium.TimeIntervalCollection([
| new Cesium.TimeInterval({
| start: start,
| stop: stop,
| }),
| ]),
| position: position,
| orientation: new Cesium.VelocityOrientationProperty(position),
| model: {
| uri: this.url,
| minimumPixelSize: 64,
| scale: 0.5
| },
| path: {
| resolution: 1,
| material: new Cesium.PolylineGlowMaterialProperty({
| glowPower: 0.1,
| color: Cesium.Color.RED,
| }),
| width: 16,
| },
| });
| this.entityModel.model.show = true
| function computeCirclularFlight(){
| var property = new Cesium.SampledPositionProperty();
| property.setInterpolationOptions({
| interpolationDegree: 2,
| interpolationAlgorithm: Cesium.HermitePolynomialApproximation,
| });
| for (var i = 0; i < myPositions.length; i++) {
| var time = Cesium.JulianDate.addSeconds(
| start,
| i,
| new Cesium.JulianDate()
| );
| var position = Cesium.Cartesian3.fromDegrees(
| myPositions[i][0],
| myPositions[i][1],
| 5
| );
| property.addSample(time, position);
| }
| return property;
| }
| },
|
| }
|
|
| export default mapRoam;
|
|
